Mold fob casting chains



F. KNADLER.'

MOLD FOR CASTING CHAINS.

APPL'ICATION FILED FEB. 5. 191B.

1 ,314:,874: Patented Sept. 2, 1919.

2 SHEETSSHEET 1. Z .5

gnbe'n rm F. KNADLER.

MOLD FOR CASTING CHAINS.

APPLICATION FILED FEB-5,1918.

1 ,3 1 4, 874; Patented Sept. 2, 1919.

2 SHEETS-SHEET 2.

attozmz q Molds for Casting Chains,

lowing is a specification, reference bein had UNITED STATES PATENTOFFICE.

FREDERICK KNADLER, OF CLEVELAND, OHIO, ASSIGNOR "1.0 THE NATIONALMALLEABLE CASTINGS COMPANY, OF CLEVELAND, OHIO, A. CORPORATION OF OHIO.

MOLD FOR CASTING CHAINS.

Specification of Letters Patent.

Patented Sept. 2, 1919.

To all whom it may concern:

Be it knownthat I, FREDERICK KNADLER, a citizen of the United States,residing at Cleveland, Cuyahoga county, Ohio, have invented new anduseful I provements in ii which the folto the accompanying drawings, inwhic Figure 1, is. a section, on line 1-1 of Fig. 2, of apair of moldsembodyin my invention; Fig. 2, is a plan of the mol partly in section onlines 2 -2 of Fig. 1; Fig. 3 is a vertical section on line 3 3 of Fig.1; Fig. 4 is a vertical section of a modification of my invention, andFig. 5 is a horizontal section thereof; Figs. 6 and 7 are verticalsections-of further modifications of my invention.

My invention relates to molds for casting chains, and particularly to anarrangement whereby continuous sections of chain are made by casting Myinvention also consists in the design and arrangement of parts which Ishall hereinafter describe and claim.

Referring to the drawings, each mold consists of the outer mold-membersA, divided in a vertical plane, and an inner mold-member B preferablydivided horizontally. The outer mold-members A, are open at the ends toreceive the inner mold-members, the openings having tapered sides 2, 2so as to wedge he two inner mold-members B together and also help guidethe inner mold-members into position inthe outer mold-members. In eachouter mold-member is formed the impression 3 corresponding to a part ofthe link to be cast, andalso the impression 4 which forms the gatethrough which the metal may be poured.

The inner mold-members B are each formed with an impression 5 into whicha preformed link 6 is dropped, so that when the two mold-members B; areplaced together that link is completely embedded in them. Each of themold-members B also contains the passages 7, which are so arranged that'when the mold-members are assembled with the outer mold-members,

they form with the impressions 3 the shape of a complete link, intowhich the metal may be poured through the gate 4. The preformed links 6are completely insulated from this connecting link by the mold-members Bto prevent the molten metal from coming into contact with the preformedlink 6.

' formed links. The fact that the inner moldmembers are tapered orwedge-shaped and enter similarly shaped recesses in the outermold-members, serves to guide these moldmembers accurately into theouter moldmembers and to press'the two halves of the inner mold-membersfirmly together so that the likelihood of-a shift between the inner andouter mold-members is minimized. Another pair of outer mold-members suchas is shown in Figs. 1 and 2, is then placed over the exposed ends ofthe inner moldmembers, and this process continued until a continuousseries of molds is built up providing for the proper number of links.When these molds are poured each two reformed links 6 are connected by athird link, making acontinuous length of chain.

Where one of the linksis found to be defective or not properly formed itis cut out of the chain and the adjacentlinks placed in innermold-members, in which case it is necessary to cut away the outer endsof the inner mold-members to avoid interference with the other links ofthe section of chain. These inner mold-members are placed in a pair ofouter mold-members and a connecting link poured just as i'n the case ofthe ori 'nal chain.

11 case the foundry floor is not long enough to accommodate the seriesof molds necessary to form a given length of chain, the chain may bemade in sections of any convenient length and after the sections -havebeen completed they may be joined by making the inner mold-member in twoparts.

In Fig. 6 a further modification is shown in which two of the adjacentlinks of the chain may be cast in one operation, the metal being pouredthrough the" gate 4 and flowing through the'impression 3 for the firstlink anda channel 9 into the impression 10 for the connecting portion ofthe second link. The links are thus cast in pairs and maybe broken apartor cut apart by an acetylene ame. a

The modified form shown in Fig. 7, is similar to that shown in Figs. 13,except that a separate gate 11 is provided leading to the impression 12'for the connecting ,por-

tion of the second link so that the second link may be cast in the moldseparately from the first.

The terms and expressions which I have employed'are intended to be usedas terms of description and not of limitation since I recognize thatmodifications and rearrange;

ments of the constructions which I have described may be made within thescope of the invention claimed. 7

What I claim is: 1. In molds for casting chains, a pair of outer moldmembers having an. impression therein for the formation of part of alink, a pair of inner mold-members having an impression therein for alink to be interlinked with the first-named link, said innermold-members having taper surfaces, corresponding surfaces on theoutermold-memcontaining a gate'for pouring metal into. the

interlinked with the first named link, the

bers, said surfaces being adapted to wedge the innermold-menibe'rstogether and guide them into position for casting, and clamping means tohold the mold-members together.

2. In a mold for casting links, a plurality 40 v of inner mold-members,each member, having oppositely tapered faces, a plurality of outermold-members complementary to the inner mold-members having taperedrecesses therein, each outer mold-member engaging tapered faces -on atleast two inner mold members 'for wedging the members into casting posi-3'. In molds for casting chains, a pair of outer sand mold-membershaving an impression therein for the formation of part of a link, a pairof inner sand mold-members having =an impression therein for a link tobe. 5

6 outer members being recessed to receive the ends ofthe inner members,and means for wedging and holding the mold-members together.- FREDERICKKNADLER,

